Hackathon S01 E05

Bae Suzy (as Seo Dal-mi) Nam Joo-hyuk (as Nam Do-san) Kim Seon-ho (as Han Ji-pyeong) Kang Han-na (as Won In-jae) Kim Hae-sook (as Choi Won-deok) Kim Do-wan (as Kim Yong-san) Kim Won-hae (as Nam Seong-hwan) Song Sun-mi (as Cha Ah-hyun) Yoo Su-bin (as Lee Chul-san) Seo Yi-sook (as Yoon Seon-hak) Kim Hee-jung (as Park Geum-jeong) Stephanie Lee (as Jeong Sa-ha) Cho Tae-kwan (as Alex Kwon) Uhm Hyo-seop (as Won Doo-jung) Yeo Jin-goo (as Jang Young-sil (voice)) Lee Min-ryung (as Jang Yi-soo) Song Ho-su (as Lee Dae-myung) Jang Se-hyun (as Nam Cheon-ho) Kim Min-seok (as Park Dong-cheon) Kang You-seok (as Shin Hyeon) Joo Bo-young (as Shin Jeong) Moon Dong-hyeok (as Won Sang-su)

love triangle competition artificial intelligence (a.i.) technology romcom unrequited love sibling rivalry business start-up lying inspiring grandmother granddaughter relationship charming app developer romantic